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Lactose-litmus agar

Lactose-litmus agar

agar made by adding 2% lactose and litmus to acid-free nutrient agar; formerly used in the identification of salmonella typhi.


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Help asap! Cant find unknown Bacteria

... bacteria that would be great Unknown Bacteria. Gram Pos Rod, Nutrient Agar Clear Blood Agar Clear Eosin Methylene Blue Agar Clear Mannitol Salt ... Gas Production- Negative Sucrose Acid Pro-Positive Gas "- Neg Lactose Acid "- Pos Gas "- Positive Catalase productions- Negative ...

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by dshenberger
Wed Dec 03, 2008 3:47 pm
 
Forum: Microbiology
Topic: Help asap! Cant find unknown Bacteria
Replies: 0
Views: 572

Help asap! Cant find unknown Bacteria

... bacteria that would be great Unknown Bacteria. Gram Pos Rod, Nutrient Agar Clear Blood Agar Clear Eosin Methylene Blue Agar Clear Mannitol Salt ... Gas Production- Negative Sucrose Acid Pro-Positive Gas "- Neg Lactose Acid "- Pos Gas "- Positive Catalase productions- Negative ...

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by dshenberger
Wed Dec 03, 2008 3:36 pm
 
Forum: Microbiology
Topic: Help asap! Cant find unknown Bacteria
Replies: 3
Views: 911

Re: Help Identifying Unknown Bacteria

NEED HELP! Unknown Bacteria. Gram Pos Rod, Nutrient Agar Clear Blood Agar Clear Eosin Methylene Blue Agar Clear Mannitol Salt Agar ... Positive Gas Production- Negative Sucrose Acid Pro-Positive Gas "- Neg Lactose Acid "- Pos Gas "- Positive Catalase productions- Negative Urease ...

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by dshenberger
Tue Dec 02, 2008 9:55 pm
 
Forum: Microbiology
Topic: Help Identifying Unknown Bacteria
Replies: 6
Views: 2424

Re: help with report on Plasmid Properties

... Lac a Lac Z encodes for beta-galactosidase that is a lactase: cleaves lactose (the sugar). Lac y encodes for Galactoside permease that promotes ... (if X-gal were used - and this is indicated by a shift in color of the agar, i believe it turns blue if X-gal was used) coding for beta galactosidase ...

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by Biologista
Fri Oct 26, 2007 6:19 pm
 
Forum: Molecular Biology
Topic: Re: help with report on Plasmid Properties
Replies: 4
Views: 692

Unknown Bacillus

... neg Casein hydrolysis (produces caesase) pos Carbohydrate Fermentation Lactose pos w/o gas Glucose pos w/o gas Sucrose pos w/ gas Mannitol neg Triple Sugar Fe Agar Test Lactose neg Dextrose pos Sucrose neg Hydrogen Sulfide neg Methyl Red neg Still ...

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by Ania
Mon Oct 08, 2007 4:38 pm
 
Forum: Microbiology
Topic: help identifying unknown bacteria
Replies: 5
Views: 15441
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